308nm UVB-LED 2/4英寸外延片
308nm UVB-LED 2/4英寸外延片
308nm UVB-LED 2/4英寸外延片
- 产品详情
- 产品参数
该产品为UVB-LED芯片的关键上游产品，经过光刻、电极蒸镀等工艺制备成UVB-LED芯片后，可应用于皮肤病治疗、动植物辅助生长，应用于生物医疗领域。目前我司已成功开发尺寸为2/4英寸发光波长在308nm波段的UVB-LED外延片，波长均匀性好，发光功率达到国内行业一流水平。
1. Structure, Mapping and EL Characteristics
2. Electrical and Physical Characteristics
Parameters | Symbol | Tool | Unit | Min. | Typ. | Max. | Remarks |
Total Epi-layer thickness | THK. | PL Mapper | um | 4.5 | 5 | 5.5 | Over 20 wafers |
Substrate (Al2O3) | - | Micrometer | um | 410 | 430 | 440 | Over 20 wafers |
Sheet resistance (n-AlGaN) | Rs | LEI | Ω/sq. | 300 | 360 | 400 | Over 20 wafers |
Parameters | Symbol | Condition | Unit | Min. | Typ. | Max. | Remarks |
Output Power | Po | 40mA | a.u. | 270 | 300 | 350 | Over 5 points |
Peak Wavelength | Wp | nm | 300 | 308 | 315 | Over 5 points | |
FWHM | Wh | nm | 10 | 12 | 13 | Over 5 points | |
Forward Voltage | Vf | V | 8 | 9 | 11 | Over 5 points (In contact) |
3. Visual inspection
Item | Value | Remarks | |
1 | Edge exclusion | 3mm | - |
2 | Surface Crack | <50 | - |
3 | Surface Haze | None | - |
4 | Hillock | <200ea @1mm2, 50X optical microscope | - |
5 | Scratch | None | - |
6 | Contamination | None | - |
7 | Bowing | <150um | - |
